2010 toyota tacoma, remote start

Hey guys, this is my first remote start install too and I've got a 2010 Tacoma. I've been looking for that For Dummies guide, but there isn't really one out there. So I have been piecing the info together and I'm just unclear on the use of a couple of things in the install, especially because I am a visual learner and I have to make myself diagrams to really get it in my head. I am a little unclear on the use of Relays and Diodes, because I lack the background in electrical work to really understand what they are used for and why. I understand a diode only allows flow one way, but I am wondering where I need them and why I need them there. I am utterly lost on relays. I also heard it mentioned somewhere that you should avoid tapping into existing 12v+ constant wires and should run one directly from the battery? I am afraid of getting anywhere near the battery without some real guidance on it though, and was hoping to use the existing 12v+. I appreciate all the help I can get! :)

What are your specific problems? What make of R/S. 4 or V6? Factory alarm? I've done a layout diagram for the Camry ignition and start. I can modify it for yours if I know what make of R/S you're using. One relay and 3 diodes. Read the sections here on relays and diodes.

Also, what bypass module are you using / planning on using?Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

It is a V6 Automatic with a Viper 5704 Remote Start and a XpressKit PKALL. There is no factory alarm, but there is a remote unlock. My specific problems are the relays and diodes really, how to wire them them. I'm also interested in why, but I will look at the sections here on it. Any thoughts on the power source? Is it OK to tap into existing wiring?

Also, I posted this as a reply in HERE but the Mods seem to have moved it to its own topic.

I'd forgotten that Kenny posted that so that's your pictorial, here's your layout. tacoma_wiring.bmp On the relay, standard Bosch/Tycho 4 or 5 terminal 87a not used, available from Radio Shack or any auto parts store. The diode shown, also Radio Shack is mandatory or you WILL fry all the circuits on plug H2. An alternative power source would be the thick white wire going to the fuse box. Cut starter wire 1 GREEN/ black, key side to green, H3/5 and motor side to violet, H3/4 of 5704.

I posted this in reply to THIS THREAD Maybe you guys can help me out? Im just concerned that every person gives a different way of doing it and I want the Right Way... I have been trying incredibly hard to figure out how to wire this freaking relay and there are a million different ways I have been told to do it, so I am going to make one post to rule them all, one post to find them, one post to bring them all and in the darkness bind them! Sorry just saw the Hobbit.. POSSIBLE RELAY WIRING VARIATIONS "Wiring 1":     Connecting +12 volt constant "connect" relay pin 86 and 87 Viper 2nd starter wire "connect" relay pin 85 relay pin 30 "connect" second starter wire on the truck *** i used NO diode or any extra fuses during my installation *****[/QUOTE] "Wiring 2": Diagram On the relay, standard Bosch/Tycho 4 or 5 terminal 87a not used, available from Radio Shack or any auto parts store. The diode shown, also Radio Shack is mandatory or you WILL fry all the circuits on plug H2. An alternative power source would be the thick white wire going to the fuse box. Cut starter wire 1 GREEN/ black, key side to green, H3/5 and motor side to violet, H3/4 of 5704. "Wiring 3": (In Previous post ^) Diagram 85 goes to a body ground 30 goes to 12 volts "I connected mine with white with blue stripe." That is your 12 volt 50 amp circuit. You have 2 12 volt wires. 87 goes to your 2nd starter wire 86 Starter 1 wire on ignition switch Starter 1 wire on your remote starter as well "Wiring 4": (As seen in Original Post) Diagram Take some extra wire (6-ish inches) and solder it to pin 86 of the relay. Take another piece of extra wire (6-ish inches) and solder it to pin 87 of the relay. Now solder on one of the 20 amp inline fuses to the wire coming from pin 86 of the relay. Solder the other 20 amp fuse to the wire coming from pin 87 of the relay. Solder the Viper’s H2/18 (violet / YELLOW) wire to pin 85. Solder some extra wire (12-ish inches) to pin 30 of the relay. "Wiring 5": (As seen in a reply to OP ^) Diagram Please, if you understand this crap, clarify which will NOT fry my electrical system but WILL work as intended.

The answer is "There are many ways to create a Starter2 output for the Tacoma".

I like Howards relay suggestion and wiring.  Here is an updated diagram :

Soldering is fun!

Do it they way Kreg is showing you. I have wired literally hundreds of second starters this way...Mike M2

Tech Manager

CS Dealer Services

Thanks guys :) I can finally get going on this thing! Hopefully I have it all done by Sunday. I am going to be taking my time and soldering/heatshrinking everything! I appreciate your help!